Vulnerability · Published Sep 4, 2026 · Assigned by VulnCheck

CVE-2026-85662Marqo 2.26.0 Server-Side Request Forgery via Media URLs

Medium 5.3

In plain English

A medium-severity server-side request forgery in marqo from marqo-ai. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 34% of all known vulnerabilities).

Severity (CVSS 3.1)5.3Medium

Exploit odds (30 days)0.4%top 65.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Marqo 2.26.0 contains a server-side request forgery vulnerability in the add_documents endpoint that allows unauthenticated attackers to trigger requests to arbitrary URLs by supplying malicious media field values. Attackers can exploit download_image_from_url and fetch_content_sample functions which lack destination filtering and host validation to access internal services and cloud metadata endpoints.

Affected products (as reported)

Vendor	Product	Versions
marqo-ai	marqo	0 – through 2.26.0

Weakness: CWE-918 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

References

GitHub Issue #1452 issue-tracking
https://github.com/marqo-ai/marqo product
https://github.com/marqo-ai/marqo/blob/2.26.0/components/inference_orchestrator/src/inference_orchestrator/services/media_download_and_preprocess/image_download.py technical-description
VulnCheck Advisory: Marqo 2.26.0 Server-Side Request Forgery via Media URLs third-party-advisory